Q48 / 180 · AIIMS 2013 · Chemistry

Assertion : EDTA forms complex with divalent metals of $3 d$-series in the ratio of $1: 1$ Reason : EDTA has $4-\mathrm{COOH}$ groups.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion.
  • Correct answer
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    If assertion is true but reason is false.
  • D
    If both assertion and reason are false.

Solution

EDTA is a hexadentate ligand. It forms complex with central metal in the ratio $1: 1$ in which it binds through two nitrogen atoms and four oxygen atoms.

Hence, the correct answer is option: 'B'.

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